<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8" />
		<title>Document</title>
	</head>
	<body>
		<script type="text/javascript" >

			let Vue = {}

			Vue.extent = function (){
				function VueComponent(){}
				return VueComponent
			}
			
			const Weather = Vue.extent()
			const Hello = Vue.extent()

			console.log('@',Weather === Hello)

			const w = new Weather()
			const h = new Hello()

			console.log(w)
			console.log(h)
		</script>
	</body>
</html>